Trapizoid &triangle
it is a piece of pizza or half a piece of toast. It is shaped like that because i cut it that way. ChaCha Again!
Draw a triangle?
It is called a frustum.
cut in half then cut both halves in half again
A triangle
Trapizoid &triangle
It depends on how you cut it. It might be a frustrum, it might be a (somewhat differently shaped) pyramid, or it might be a wedge.
square
It would be a wooden cube that has been cut in half and painted red.
A hemisphere is half a sphere (half a ball, cut through the middle). A pyramid looks like an Egyptian 'Pyramid' (see the related link below).
it is a piece of pizza or half a piece of toast. It is shaped like that because i cut it that way. ChaCha Again!
Depends where you make the cut Across the planes it is a CUBOID Across the corners it is PYRAMID .
The stone statue that is half man and half animal guards the Great Pyramid of Giza in Egypt.
How to make a pyramid out of poster board?
Not exactly. A frustum would be a pyramid with the apex cut off. A truncated pyramid would be a pyramid with all vertices cut off.
It is a frustum of a rectangular pyramid.